Paper Info
Title
NOMA Spectral Efficiency Maximization with Improper Gaussian Signaling and SIC Imperfection
Abstract
The paper studies the downlink of non-orthogonal multiple access (NOMA) under imperfect successive interference cancellation (SIC). In an effort to overcome the SIC imperfection problem, we propose to adopt improper Gaussian signaling (IGS) for the signal transmission of the NOMA users. In particular, we jointly optimize the IGS circularity coefficient and transmit power to maximize the spectral efficiency subject to minimum Quality-of-Service (QoS) per each user and total power budget. Simulations results show the effectiveness of IGS to compensate for the SIC imperfections compared with proper Gaussian signaling (PGS)based NOMA systems.
Year
DOI
Venue
2021
10.1109/ICC42927.2021.9500779
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2021)
Keywords
DocType
ISSN
Improper Gaussian signaling, non-convex optimization, non-orthogonal multiple access, spectral efficiency
Conference
1550-3607
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Islam Abu Mahady1141.91
Ebrahim Bedeer201.35
Salama S. Ikki3174.58
Halim Yanikomeroglu44413367.42